Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-l829haag8s
Target 6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4
SHA256 6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4
Tags
stealc vidar discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4

Threat Level: Known bad

The file 6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

Downloads MZ/PE file

Reads user/profile data of web browsers

Executes dropped EXE

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 10:13

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 10:13

Reported

2024-06-08 10:15

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katFF40.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 212 set thread context of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\katFF40.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katFF40.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katFF40.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp
PID 212 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\katFF40.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe

"C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe"

C:\Users\Admin\AppData\Local\Temp\katFF40.tmp

C:\Users\Admin\AppData\Local\Temp\katFF40.tmp

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3404,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4216 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 24.249.124.192.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 2.173.189.20.in-addr.arpa udp

Files

memory/212-0-0x0000000000810000-0x0000000000811000-memory.dmp

memory/212-2-0x0000000002B10000-0x0000000002C73000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katFF40.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2124-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2124-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2124-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2124-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2124-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2124-25-0x000000001B830000-0x000000001BA8F000-memory.dmp

memory/2124-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2124-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 10:13

Reported

2024-06-08 10:15

Platform

win11-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4864 set thread context of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp
PID 4864 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe

"C:\Users\Admin\AppData\Local\Temp\6c241fca79a87ad8374bb23980ff6d977270c18f24cce68faa9d55fdccb798a4.exe"

C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp

C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp

Files

memory/4864-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/4864-2-0x0000000004210000-0x0000000004373000-memory.dmp

memory/3636-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4864-10-0x0000000000400000-0x000000000067A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6CD3.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3636-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-18-0x0000000019360000-0x00000000195BF000-memory.dmp

memory/3636-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3636-34-0x0000000000400000-0x0000000000648000-memory.dmp